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Bridging the gap between keyword and semantic search with SPLADE (2024)

http://arcturus-labs.com/blog/2024/10/09/bridging-the-gap-between-keyword-and-semantic-search-with-splade/
23•softwaredoug•2mo ago

Comments

jbellis•1mo ago
I'm kind of disappointed in this article, Splade is a cool way to improve results of a TF/IDF index with minimally invasive changes and this obscures that more than it clarifies.

> Next, my SPLADE implementation in Elasticsearch is oversimplified. If you scroll back up to get_splade_embedding, we extract non-zero elements from vec_np (the SPLADE tokens) but discard their associated weights. This is a missed opportunity. The SPLADE papers use these weights for scoring matches.

Yes, exactly, that is the whole point of Splade.

Probably easier to demonstrate if you drop down a level to Lucene, I don't think you will be able to do it easily with Elastic.

Tangentially, I haven't looked closely at SPLATE which tries to marry Splade and ColBERT, but it's an interesting idea. https://arxiv.org/html/2404.13950v1

JnBrymn•1mo ago
You're absolutely right. This was a post I tossed together quickly just to see what could be done without thinking too much. In retrospect, I think this would be better implemented using Elasticsearch sparse vector fields which allow you to specify the value of every token. Maybe I'l make an update post to try again.

Nobody has a personality anymore: we are products with labels

https://www.freyaindia.co.uk/p/nobody-has-a-personality-anymore
116•drankl•3h ago•69 comments

Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

https://github.com/jackjackbits/bitchat
51•ananddtyagi•1h ago•31 comments

Intel's Lion Cove P-Core and Gaming Workloads

https://chipsandcheese.com/p/intels-lion-cove-p-core-and-gaming
63•zdw•2h ago•0 comments

Building the Rust Compiler with GCC

https://fractalfir.github.io/generated_html/cg_gcc_bootstrap.html
86•todsacerdoti•3h ago•3 comments

Show HN: I wrote a "web OS" based on the Apple Lisa's UI, with 1-bit graphics

https://alpha.lisagui.com/
249•ayaros•6h ago•82 comments

Jane Street barred from Indian markets as regulator freezes $566 million

https://www.cnbc.com/2025/07/04/indian-regulator-bars-us-trading-firm-jane-street-from-accessing-securities-market.html
243•bwfan123•11h ago•134 comments

There's a COMPUTER inside my DS flashcart [video]

https://www.youtube.com/watch?v=uq0pJmd7GAA
16•surprisetalk•1h ago•0 comments

I extracted the safety filters from Apple Intelligence models

https://github.com/BlueFalconHD/apple_generative_model_safety_decrypted
256•BlueFalconHD•5h ago•157 comments

Data on AI-related Show HN posts

https://ryanfarley.co/ai-show-hn-data/
222•rfarley04•2d ago•128 comments

Centaur: A Controversial Leap Towards Simulating Human Cognition

https://insidescientific.com/centaur-a-controversial-leap-towards-simulating-human-cognition/
13•CharlesW•2h ago•4 comments

Swedish Campground: "There are too many Apples on the screen!" (1983)

https://www.folklore.org/Swedish_Campground.html
19•CharlesW•1h ago•4 comments

Opencode: AI coding agent, built for the terminal

https://github.com/sst/opencode
126•indigodaddy•7h ago•30 comments

Get the location of the ISS using DNS

https://shkspr.mobi/blog/2025/07/get-the-location-of-the-iss-using-dns/
257•8organicbits•12h ago•75 comments

Functions Are Vectors (2023)

https://thenumb.at/Functions-are-Vectors/
149•azeemba•10h ago•79 comments

I don't think AGI is right around the corner

https://www.dwarkesh.com/p/timelines-june-2025
145•mooreds•4h ago•169 comments

Backlog.md – Markdown‑native Task Manager and Kanban visualizer for any Git repo

https://github.com/MrLesk/Backlog.md
77•mrlesk•5h ago•16 comments

Lessons from creating my first text adventure

https://entropicthoughts.com/lessons-from-creating-first-text-adventure
27•kqr•2d ago•1 comments

Crypto 101 – Introductory course on cryptography

https://www.crypto101.io/
25•pona-a•4h ago•2 comments

A non-anthropomorphized view of LLMs

http://addxorrol.blogspot.com/2025/07/a-non-anthropomorphized-view-of-llms.html
93•zdw•2h ago•77 comments

Corrected UTF-8 (2022)

https://www.owlfolio.org/development/corrected-utf-8/
38•RGBCube•3d ago•27 comments

Curzio Malaparte's Shock Tactics

https://www.newyorker.com/books/under-review/curzio-malapartes-shock-tactics
4•mitchbob•3d ago•2 comments

The Broken Microsoft Pact: Layoffs and Performance Management

https://danielsada.tech/blog/microsoft-pact/
36•dshacker•2h ago•17 comments

Metriport (YC S22) is hiring engineers to improve healthcare data exchange

https://www.ycombinator.com/companies/metriport/jobs/Rn2Je8M-software-engineer
1•dgoncharov•8h ago

Hannah Cairo: 17-year-old teen refutes a math conjecture proposed 40 years ago

https://english.elpais.com/science-tech/2025-07-01/a-17-year-old-teen-refutes-a-mathematical-conjecture-proposed-40-years-ago.html
344•leephillips•10h ago•76 comments

Async Queue – One of my favorite programming interview questions

https://davidgomes.com/async-queue-interview-ai/
90•davidgomes•8h ago•74 comments

Mirage: AI-native UGC game engine powered by real-time world model

https://blog.dynamicslab.ai
19•zhitinghu•1d ago•15 comments

Paper Shaders: Zero-dependency canvas shaders

https://github.com/paper-design/shaders
8•nateb2022•2d ago•1 comments

Toys/Lag: Jerk Monitor

https://nothing.pcarrier.com/posts/lag/
46•ptramo•10h ago•37 comments

Collatz's Ant and Σ(n)

https://gbragafibra.github.io/2025/07/06/collatz_ant5.html
24•Fibra•8h ago•3 comments

Why English doesn't use accents

https://www.deadlanguagesociety.com/p/why-english-doesnt-use-accents
66•sandbach•4h ago•62 comments